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Caching is an efficient way to reduce network traffic congestion during peak hours by storing some content at the users' local caches. For the shared-link network with end-user-caches, Maddah-Ali and Niesen proposed a two-phase coded…

信息论 · 计算机科学 2021-11-08 Kai Wan , Daniela Tuninetti , Mingyue Ji , Pablo Piantanida

In recent years, there is an increasing demand of big memory systems so to perform large scale data analytics. Since DRAM memories are expensive, some researchers are suggesting to use other memory systems such as non-volatile memory (NVM)…

性能 · 计算机科学 2016-10-03 Gaoying Ju , Yongkun Li , Yinlong Xu , Jiqiang Chen , John C. S. Lui

Sharding is used to address the performance and scalability issues of the blockchain protocols, which divides the overall transaction processing costs among multiple clusters of nodes. Shards require less storage capacity and communication…

分布式、并行与集群计算 · 计算机科学 2023-03-31 Ramesh Adhikari , Costas Busch

Card-based cryptography uses physical playing cards to construct protocols for secure multi-party computation. Existing card-based protocols employ various types of shuffles, some of which are easy to implement in practice while others are…

密码学与安全 · 计算机科学 2026-05-15 Tomoki Ono , Suthee Ruangwises

Modern mainstream persistent key-value storage engines utilize Log-Structured Merge tree (LSM-tree) based designs, optimizing read/write performance by leveraging sequential disk I/O. However, the advent of SSDs, with their significant…

数据库 · 计算机科学 2024-06-27 Jin Jiang , Dongsheng He , Yu Hu , Dong Liu , Chenfan Xiao , Hongxiao Bi , Yusong Zhang , Chaoqu Jiang , Zhijun Fu

Although homomorphic encryption can be incorporated into neural network layers for securing machine learning tasks, such as confidential inference over encrypted data samples and encrypted local models in federated learning, the…

密码学与安全 · 计算机科学 2022-12-23 Dongfang Zhao

Offchain networks emerge as a promising solution to address the scalability challenge of blockchain. Participants directly make payments through a network of payment channels without the overhead of committing onchain transactions. Routing…

网络与互联网体系结构 · 计算机科学 2019-06-12 Peng Wang , Hong Xu , Xin Jin , Tao Wang

The existing work on densification of one permutation hashing reduces the query processing cost of the $(K,L)$-parameterized Locality Sensitive Hashing (LSH) algorithm with minwise hashing, from $O(dKL)$ to merely $O(d + KL)$, where $d$ is…

统计方法学 · 统计学 2014-06-19 Anshumali Shrivastava , Ping Li

This paper considers the multiaccess coded caching systems formulated by Hachem et al., including a central server containing $N$ files connected to $K$ cache-less users through an error-free shared link, and $K$ cache-nodes, each equipped…

信息论 · 计算机科学 2021-06-08 Minquan Cheng , Kai Wan , Dequan Liang , Mingming Zhang , Giuseppe Caire

Random hashing can provide guarantees regarding the performance of data structures such as hash tables---even in an adversarial setting. Many existing families of hash functions are universal: given two data objects, the probability that…

数据结构与算法 · 计算机科学 2018-10-16 Dmytro Ivanchykhin , Sergey Ignatchenko , Daniel Lemire

Payment channels allow transactions between participants of the blockchain to be executed securely off-chain, and thus provide a promising solution for the scalability problem of popular blockchains. We study the online network design…

数据结构与算法 · 计算机科学 2019-08-02 Georgia Avarikioti , Kenan Besic , Yuyi Wang , Roger Wattenhofer

Given a set S of n keys, a k-perfect hash function (kPHF) is a data structure that maps the keys to the first m integers, where each output integer can be hit by at most k input keys. When m=n/k, the resulting function is called a minimal…

数据结构与算法 · 计算机科学 2025-07-03 Stefan Hermann , Sebastian Kirmayer , Hans-Peter Lehmann , Peter Sanders , Stefan Walzer

Dynamic load balancing lies at the heart of distributed caching. Here, the goal is to assign objects (load) to servers (computing nodes) in a way that provides load balancing while at the same time dynamically adjusts to the addition or…

数据结构与算法 · 计算机科学 2020-06-17 John Chen , Ben Coleman , Anshumali Shrivastava

Hashing has been widely used for large-scale search due to its low storage cost and fast query speed. By using supervised information, supervised hashing can significantly outperform unsupervised hashing. Recently, discrete supervised…

信息检索 · 计算机科学 2018-10-17 Qing-Yuan Jiang , Xue Cui , Wu-Jun Li

In order to fully unlock the transformative power of distributed ledgers and blockchains, it is crucial to develop innovative consensus algorithms that can overcome the obstacles of security, scalability, and interoperability, which…

分布式、并行与集群计算 · 计算机科学 2023-10-16 Amirhossein Taherpour , Xiaodong Wang

Blockchain technologies can enable secure computing environments among mistrusting parties. Permissioned blockchains are particularly enlightened by companies, enterprises, and government agencies due to their efficiency, customizability,…

分布式、并行与集群计算 · 计算机科学 2021-06-09 Minghui Xu , Shuo Liu , Dongxiao Yu , Xiuzhen Cheng , Shaoyong Guo , Jiguo Yu

Similarity-preserving hashing is a widely-used method for nearest neighbour search in large-scale image retrieval tasks. There has been considerable research on generating efficient image representation via the deep-network-based hashing…

计算机视觉与模式识别 · 计算机科学 2017-10-20 Hanjiang Lai , Yan Pan

Nearest neighbors search is a fundamental problem in various research fields like machine learning, data mining and pattern recognition. Recently, hashing-based approaches, e.g., Locality Sensitive Hashing (LSH), are proved to be effective…

信息检索 · 计算机科学 2012-05-15 Yue Lin , Deng Cai , Cheng Li

Sending money in cryptocurrencies is majorly based on public keys or their hashed forms -- "addresses." These long random-looking strings are user unfriendly for transferring by other means than via copy-and-paste or QR codes. Replacing…

密码学与安全 · 计算机科学 2016-12-16 Michal Zima

For nearly six decades, the central open question in the study of hash tables has been to determine the optimal achievable tradeoff curve between time and space. State-of-the-art hash tables offer the following guarantee: If keys/values are…

数据结构与算法 · 计算机科学 2021-11-05 Michael A. Bender , Martín Farach-Colton , John Kuszmaul , William Kuszmaul , Mingmou Liu